A group of people age 40 is compared to a group age 70.This type of research is called
A)longitudinal.
B)time-of-measurement.
C)cross-sectional.
D)cohort effect.

Question

Quizplus · Accepted Answer

This type of research is called cross-sectional because it compares two different groups at the same point in time. Longitudinal research studies the same group of people over a period of time, while time-of-measurement research measures the same group at different points in time. Cohort effect refers to differences between groups that are due to factors unique to each cohort, such as growing up during different time periods.

A Group of People Age 40 Is Compared to a Group